| 000 | 00434nam a2200145Ia 4500 | ||
|---|---|---|---|
| 005 | 20250913131743.0 | ||
| 008 | 250913s9999||||xx |||||||||||||| ||und|| | ||
| 041 | _aEnglish | ||
| 100 | _aBolibaugh, J. | ||
| 245 | 0 | _aEducational development A practical issue Guidelines for the preparation production and distribution of textbooks | |
| 260 |
_bUnesco, _c1980 |
||
| 300 |
_a75p.; _c28cm |
||
| 650 | _aOccasional Papers | ||
| 942 | _cOP | ||
| 999 |
_c156896 _d156896 |
||